US20140378977A1 - Minimally invasive device for surgical operations - Google Patents
Minimally invasive device for surgical operations Download PDFInfo
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- US20140378977A1 US20140378977A1 US14/367,766 US201214367766A US2014378977A1 US 20140378977 A1 US20140378977 A1 US 20140378977A1 US 201214367766 A US201214367766 A US 201214367766A US 2014378977 A1 US2014378977 A1 US 2014378977A1
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- primary
- main body
- surgical procedures
- minimally invasive
- holding handle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/15—Guides therefor
- A61B17/151—Guides therefor for corrective osteotomy
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- A61B17/148—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/149—Chain, wire or band saws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/82—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for bone cerclage
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8861—Apparatus for manipulating flexible wires or straps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
Definitions
- the present invention relates to the field of design and construction of devices used in surgical procedures, such as osteotomies, and specifically relates to a minimally invasive device for surgical procedures.
- the above device described above has a drawback in that its design is not ergonomic, which makes its use by the medical team more difficult.
- Another disadvantage is that the cut carried out by the device is performed by material removal instead of a clean cut, as well as the further drawback that being a very flexible device, only very small structures may be cut.
- said device does not include a mechanism which enables regulation and measurement of the cut in the spatial planes.
- U.S. Pat. No. 8,048,080B2 which comprises a main body formed by an elongated body, a handle, an actuator, tissue modifying elements and a protecting surface.
- the elongated body has a proximal and a distal section, which includes a window to enable the tissue modifying elements to make contact with the tissue to be modified.
- a guide piece Before introducing the elongated body in the area with tissues to be modified, a guide piece must be inserted, which will act as guide and support element for said main body; as the elongated body is introduced in the body of the patient, the guide piece is inserted in the central part of said elongated body, once the elongated body is placed in its working position, the free end of the guide piece which projects outwards from the body of the patient is held firmly; the handle is held firmly as well, and by operating the actuator, the tissue modifying elements begin to carry out their abrasion or cutting function. Once the procedure is completed, the main body and the guide piece are removed from the body of the patient.
- U.S. Pat. No. 6,423,080 B1 which describes a device employed to hold or secure structures and/or organs, which comprises a pair of positioning pieces, which are formed by a handle, a guiding conduit, a bracket, a cutting element and an actuator.
- the handle has a hollow tubular body which has an actuator in its upper section and a bracket in its lower section which holds the guiding conduit in position.
- Said handle has an irregular outer surface to improve the grip.
- the guiding conduit has a straight proximal section, a curved intermediate section and a straight distal section.
- the straight distal section is oriented at a 90° angle with respect to the position of the straight proximal section.
- the guiding conduit is hollow to house the cutting element which in turn is hollow to allow passage of the guiding piece.
- the cutting element is employed to create a small aperture in the tissue and allow passage of the positioning element.
- a minimally invasive device for carrying out surgical procedures which generally comprises at least a pair assembly elements formed by a primary main body and a secondary main body, joined at their proximal and distal ends; a fastening element which is inserted in the distal end of both primary and secondary main bodies respectively, whose function is to hold them together; a threading element which is inserted in its inner section from the intermediate section of said device, continues to its proximal end and returns to the intermediate section by the opposite end; and a multifunction element which is located inside the threading element.
- the secondary main body is formed by a secondary holding handle and a secondary positioning element which connects with the primary holding handle.
- a coupling element is located, with a shape resembling a horizontal “U”.
- the secondary positioning element has a second slit oriented towards the inner part of the secondary main body, which enables that, together with the first slit of the primary positioning element, the multifunction element may protrude on the inside of the present device for surgical procedures.
- the fastening element is formed by a central handhold with an outside surface having a plurality of channels to increase the grip of said handhold. On its lower end, a boss is located, from which a threaded pin of smaller diameter projects, which is inserted in the threaded hole in the anchoring area of the primary main body.
- an internal channel is formed at the ends of which the threading element is placed.
- Said threading element houses the multifunction element in its interior.
- the internal channel has a window which is formed by joining the first slit to the second slit which enables the multifunction element to protrude from the inner part of the device.
- the multifunction element is employed to perform several tasks, among others: to modify tissues and/or structures, suturing, loops and cuts in bone structures.
- this device When this device is employed to cut bone structures, it includes a spatial positioning element which enables it to direct, measure and graduate the cut in said bone structure on three spatial planes, frontal sagittal and rotational.
- Said element is formed by a straight arm, where a first central longitudinal channel is located which runs along its entire length, a curved arm where a second longitudinal channel is located, and an anchoring mechanism employed to attach the spatial positioning element to the surgical procedures device.
- the present device consists of a single body, which has a holding handle which projects from its distal end to approximately two third parts of the total length of said device, and a cutting body which projects from the end of the holding handle to the proximal end of said device.
- the structure of the device for surgical procedures subject of the present invention allows its use in long bone osteotomies, mainly femur and shinbone, for procedures such as bone lengthening, axial corrections of members, as well as osteotomies of flat bones such as the illiacus, ischium and pubis.
- one of the objects of the present invention is to provide a device for use in surgical procedures which requires minimal invasion, and which may be used in osteotomy and/or tissue removal procedures in a convenient and simple way
- An additional object of the present invention is to provide a device for use in surgical procedures which requires minimal invasion and which reduces to a minimum the time required to carry out the surgical procedure and the internal damage caused to the patient.
- An additional object of the present invention is to provide a minimally invasive device for use in surgical procedures which enables carrying out surgical procedures which are safer and less invasive for the patient.
- a further object of the present invention is to provide a minimally invasive device for surgical procedures with ergonomic design and construction, thereby facilitating its handling by the medical team.
- An additional object of the present invention is to provide a minimally invasive device for surgical procedures which includes a threading element which enables threading and placement of a multifunction element, such as for example a Gigli saw, to allow cutting of a bone structure.
- Another of the objects of the present invention is to provide a minimally invasive device for surgical procedures which functions as a protective element to avoid damage to adjacent structures and/or tissues during threading and use of the multifunction element.
- Another of the objects of the present invention is to provide a minimally invasive device for surgical procedures which includes means to attach it to a bone structure and a spatial positioning element which enables adjustment of the cut of said bone structure in the three planes, sagittal, frontal and rotational.
- FIG. 1 is a front perspective view of a preferred embodiment of the minimally invasive device for surgical procedures subject of the present invention.
- FIG. 2 is a lower perspective view of the primary main body which forms part of the device for surgical procedures shown in FIG. 1 .
- FIG. 3 is a lower perspective view of the secondary main body which forms part of the device for surgical procedures shown in FIG. 1 .
- FIG. 4 is a lower perspective view of the device for surgical procedures shown in FIG. 1 .
- FIG. 5 is a partial lower and front perspective view of the device for surgical procedures shown in FIG. 1 .
- FIG. 6 is a side perspective view of the device for surgical procedures shown in FIG. 1 when connected to a spatial positioning element.
- FIG. 7 is a partial side perspective view of the arrangement shown in FIG. 6 , which is attached to a bone structure.
- FIG. 8 is a front perspective view of a first embodiment of the spatial positioning element which forms part of the device for surgical procedures.
- FIG. 9 is a side perspective view of a ring located in the primary main body, which is part of the first embodiment of the spatial positioning element shown in FIG. 8 .
- FIG. 10 is a front perspective view of a second embodiment of the spatial positioning element which forms part of the device for surgical procedures.
- FIG. 11 is a side perspective view of a retaining system located in the primary main body, which forms part of the second embodiment of the spatial positioning element shown in FIG. 10 .
- FIG. 12 is a perspective view of the secondary main body being placed around a bone structure to carry out an osteotomy.
- FIG. 13 is a perspective view of the primary main body and the secondary main body being joined prior to an osteotomy.
- FIG. 14 is a perspective view of a bone structure which has been cut using the device for surgical procedures shown in FIG. 1 .
- FIG. 15 is a front view of a first additional embodiment of the minimally invasive device for surgical procedures subject of the present invention.
- FIG. 16 is a front view of the primary main body which forms part of the device for surgical procedures shown in FIG. 15 .
- FIG. 17 is a front view of the secondary main body which forms part of the device for surgical procedures shown in FIG. 15 .
- FIG. 18 is a front view of a second additional embodiment of the minimally invasive device for surgical procedures subject of the present invention.
- FIG. 19 is a schematic view that portrays a primary trajectory of the multifunction element around a bone structure, according to the configuration of the device for surgical procedures shown in FIG. 18 .
- FIG. 20 is a schematic view which portrays a secondary trajectory of the multifunction element around a bone structure, according to the configuration of the device for surgical procedures shown in FIG. 18 .
- FIG. 21 is a front view of a third additional embodiment of the minimally invasive device for surgical procedures subject of the present invention.
- FIG. 22 is a front view of a fourth additional embodiment of the minimally invasive device for surgical procedures subject of the present invention.
- FIGS. 1 to 5 of said drawings show a minimally invasive device for surgical procedures 100 constructed according to a particularly preferred embodiment of the present invention, which should be considered as representative but not limitative of the same, where said device 100 comprises in general terms at least a pair of assembly elements formed by a primary main body, 10 and a secondary main body 20 joined at their proximal and distal ends; a fastening element 30 which is inserted in the distal end of both the primary and secondary main bodies 10 and 20 respectively, which is used to keep them joined together; a threading element (not shown in the figures) which is inserted in its inner section from the intermediate section of device 100 , continues to its proximal end and returns to the intermediate section by the opposite end, and a multifunction element 40 which is located inside the threading element
- said device 100 has a proximal end, which is the end located closest to the tissue or bone structure to be modified or cut, an intermediate section, which is located approximately in the central part of device 100 , and a distal end, which corresponds to the opposite end with respect to the proximal end, that is to say, corresponds to the end furthest from the tissue or structure to be modified.
- the primary main body 10 which corresponds to an assembly element of the above mentioned device 100 , which in FIG. 1 is located on the left side of said device 100 , is formed by a primary holding handle 11 which projects from the base of the distal end of device 100 to the intermediate section of said primary main body 10 ; and a primary positioning element 14 which connects to the primary holding handle 11 , and projects from the intermediate section of the primary main body 10 to its proximal end.
- the primary main holding handle 11 is a solid body that together with a secondary holding handle 21 , form the shape of a fork, at whose distal section an anchoring area 12 is located, which has a homogeneous serrated surface on its outer face, whose function will be described below.
- said anchoring area 12 of the primary holding handle 11 has a threaded orifice in which fastening element 30 is threadingly inserted.
- the primary positioning element 14 is formed by a cylindrical hollow body which together with a secondary positioning element 23 resemble the shape of the upper part of a bowling pin, whose bottom end 15 projects laterally from the intermediate section of primary main body 10 towards the outer part of device 100 such as can be seen in FIG. 1 .
- primary positioning element 14 At its upper end 16 , primary positioning element 14 has a coupling body 17 , preferably of annular shape and with an inside diameter equal to the outside diameter of the body of primary positioning element 14 .
- said primary positioning element 14 has a first slit 18 oriented towards the inner part of primary main body 10 , which in a preferred embodiment, runs longitudinally from its upper end 16 to approximately half of the total length of said primary positioning element 14 .
- slit 18 is complete since it runs longitudinally along the entire inner length of primary positioning element 14 .
- First slit 18 together with a second slit 26 located in secondary main body 20 is used so that multifunction element 40 may protrude and carry out its work.
- the complete slit allows multifunction element 40 to act in its entire length, enabling suturing, cerclage, etc. without the need to remove device 100 .
- the other assembly element of device 100 corresponds to secondary main body 20 , which is located in FIG. 1 on the right hand side of said device 100 , being formed by a secondary holding handle 21 which projects from the base of the distal end of said secondary main body 20 to the intermediate section of the secondary main body 20 ; and a secondary positioning element 23 which projects from the end of the secondary holding handle 21 , that is to say, from the intermediate section of said secondary main body 20 to the base of its proximal end.
- Secondary holding handle 21 is a solid body that together with primary holding handle 11 , resemble the shape of a fork, at the most distal section of which a coupling element 22 is located, which has the shape of a horizontal “U”, such as may be seen in FIG. 3 .
- said coupling element 22 On its inside face, said coupling element 22 has a homogeneous serrated surface (not shown in the figures) which corresponds in shape and size to the homogeneous serrated surface of anchoring area 12 of primary holding handle 10 .
- Secondary positioning element 23 is formed by a hollow cylindrical body, which together with primary positioning element 14 resemble the shape of the upper part of a bowling pin, whose lower end 24 projects from the intermediate section of secondary main body 20 to the outer part of device 100 .
- the upper end 25 of said secondary positioning element 23 has a diameter which enables it to be inserted in the coupling body 17 located in primary positioning element 14 .
- said secondary positioning element 23 has a second slit 26 oriented towards the inner part of secondary main body 20 , which in a preferred embodiment runs longitudinally from its upper end 25 to approximately half of the total length of said secondary positioning element 23 .
- slit 26 is complete since it runs longitudinally along the entire inner section of secondary positioning element 23 . Second slit 26 is used so that, together with first slit 18 of primary positioning element 14 , they allow multifunction element 40 to protrude on the inside of device 100 .
- Primary main body 10 is joined to secondary main body 20 at their proximal and distal ends, forming a single circuit body, with a shape which resembles an inverted fork in its distal part and the outline of a bowling pin in its proximal part. It is worth mentioning that at the proximal end of the device for surgical procedures 100 , primary positioning element 14 is joined to secondary positioning element 23 by means of coupling body 17 of primary positioning element 14 . The function of holding together primary main body 10 and secondary main body 20 at their distal end is carried out by fastening element 30 .
- Fastening element 30 is formed by a central handle 31 of preferably cylindrical shape, with an outside surface having a plurality of channels 32 which cross each other to form a rough surface which increases grip of said central handle 31 .
- a boss 33 positioned perpendicularly to said central handle 31 , with a preferably cylindrical outline, from the inside of which a threaded cylinder 34 of smaller diameter than said boss 31 projects, which is placed in threaded orifice 13 of anchoring area 12 of primary main body 10 .
- Threaded cylinder 34 has a diameter which enables it to be firmly held by coupling element 22 .
- threaded cylinder 34 has a protrusion 35 , which is an integral part of threaded cylinder 34 and of larger diameter than threaded hole 13 of anchoring area 12 , which once fastening element 30 is placed in primary main body 10 ensures that it cannot be separated from said body 10 but may rotate freely to fasten secondary main body 20 .
- an internal channel is formed at the ends of which a threading element is placed (not shown in the figures), which is inserted from the intermediate section of device 100 , continues to its proximal end, and returns to the intermediate section on the opposite side.
- the internal channel has an aperture (window) which is formed by joining first slit 18 of primary positioning element 14 to second slit 26 of secondary positioning element 23 and from where multifunction element 40 may protrude on the inner part of device 100 as will be explained below.
- Multifunction element 40 is employed to perform several functions, including but not limited to: modifications in tissues and/or structures, sutures, cerclages, loops and cuts in bone structures. Depending on the function to be carried out, multifunction element 40 may be selected from wires, cables, suturing threads and cutting saws, such as for example Gigli's saw, etc.
- a threading element is placed (not shown in the figures) which in a preferred embodiment of the present invention is a siliconed tube, which facilitates threading of the multifunction element through the internal channel, preventing said element 40 from protruding from the aperture (window) formed by first slit 18 and second slit 26 .
- the threading element protects the person manipulating multifunction element 40 from suffering lesions when placing it in position.
- device 100 may be used for cutting bone structures, and for this purpose said device 100 includes an element for spatial positioning 60 which enables it to direct, measure and graduate the cut of said bone structure on three spatial planes: frontal sagittal and rotational.
- spatial positioning element 60 it is firmly attached to the bone structure to be cut by at least two external anchoring elements 70 and to the device for surgical procedures 100 by means of an anchoring mechanism 80 .
- This positioning and graduation device allows us to maintain the bone structure in position after the cut even after removing device 100 .
- Spatial positioning 60 is formed by a straight arm 61 , which has a flat elongated body of rectangular shape, where a first central longitudinal channel 62 is located, which traverses the whole thickness of the body and runs along its entire length and over which anchoring mechanism 80 , which is described below, slides and to which it is secured.
- Said straight arm 61 has a first indicating scale 63 on its upper surface, which allows the user of this device to read the displacement of device 100 on the frontal plane (varus-valgus).
- Straight arm 61 has a primary anchoring point 64 on one of its ends, preferably of quadrangular shape, which is provided with a central orifice (not shown in the figures) where an external fastening element 70 is inserted.
- a sliding anchoring point 65 is located, which in a preferred embodiment is in the shape of a “C” over which a curved arm 66 slides and to which it is secured.
- Curved arm 66 is formed by a thin curved body with a curvature having a radius equal to the distance to the center of the bone structure to be cut and where a second central longitudinal channel 67 which traverses the whole thickness of the body is located, which is used to fasten said curved arm 66 to the sliding anchoring point 65 by means of a screw 68 which is threadingly inserted in an orifice (not shown in the figures) located in sliding anchoring point 65 .
- Curved arm 66 includes an indicating scale 69 on its front surface, which enables measurement of the rotation angle of device 100 with respect to the bone structure. This feature is particularly useful in derotational osteotomies.
- the pair of external fastening elements 70 is used to attach device 100 to a bone structure.
- Said pair of external fastening elements 70 is selected from a group including Kirschner and/or Steinmann pins, the preferred element being Kirschner pins.
- Anchoring mechanism 80 is employed to secure spatial positioning element 60 to device for surgical procedures 100 .
- primary main body 10 or secondary main body 20 of device 100 and particularly primary holding handle 11 or secondary holding handle 21 include an appendix 90 preferably of cylindrical shape which protrudes longitudinally and upwards following a straight trajectory, from approximately the middle of holding handle 11 or 21 to a distance that coincides with the end of primary holding handle 11 or secondary holding handle 21 .
- anchoring mechanism 80 is formed by a main body 81 , preferably of cylindrical shape, the front face of which includes an orifice (not shown in the figures) in which appendix 90 of primary holding handle 11 or secondary holding handle 21 is inserted and secured.
- the depth at which device 100 is located with respect to the bone structure to be cut is graduated depending on the position in which anchoring mechanism 80 is secured to appendix 90 with respect to its longitudinal axis.
- a rotation element 82 is located, which can rotate with respect to main body 81 and which includes a preferably rectangular indentation 83 .
- FIGS. 10 and 11 show a second additional embodiment of spatial positioning element 60 , where said element 60 , in addition to including a straight arm 61 , a curved arm 66 and an intermediate arm 610 as described in the first embodiment of said element 60 , includes a vertical stem 85 , the lower end of which includes a sphere 86 , which, as will be described below, is inserted in a spherical cavity 94 located in device 100 , allowing rotational movement of spatial positioning element 60 with respect to said device 100 ; while the upper end of said vertical stem 85 is inserted in the first central channel 611 of intermediate arm 610 , in such a way that both straight arm 61 and intermediate arm 610 are connected by said vertical stem 85 .
- Threaded key 93 when rotated in one direction, firmly grasps sphere 86 , when turned in the opposite direction the force with which sphere 86 is held is diminished, thus allowing angular movement of device 100 over spatial positioning element 60 on the sagittal plane.
- both holding handles 11 and 21 are connected by fastening element 30 (shown in FIGS. 1 to 3 ).
- fastening element 30 shown in FIGS. 1 to 3 .
- threaded projection 34 of fastening element 30 is threaded in orifice 13 of primary holding handle 11 until boss 33 firmly contacts coupling element 22 . This allows coupling of both primary and secondary main bodies 10 and 20 respectively in such a way that they cannot become accidentally separated.
- spatial positioning element 60 is placed on device 100 and attached to the bone structure by a pair of Kirschner mails which constitute fastening elements 70 .
- the threading element which houses multifunction element 40 which in this case is a Gigli saw, is inserted through lower end 15 of the primary positioning element 14 or through lower end 24 of secondary positioning element 23 . Said threading element is inserted in one of the lower ends 15 or 24 and exits on the lower end of the opposite side.
- the surgeon When the threading element, together with multifunction element 40 are located in their working position, the surgeon removes the threading element uncovering the cutting elements of the Gigli saw.
- the surgeon grasps both elements of multifunction element 40 protruding from device 100 , and by means of a back and forth movement, said element 40 cuts the bone structure through the opening located on the internal channel of the proximal end of device 100 .
- primary holding handle 111 At the most distal part of primary holding handle 111 an anchoring area is located (not shown in the figures) which has a homogeneous serrated surface on its outer face.
- primary holding handle 111 has a threaded orifice, into which fastening element 130 is threadingly inserted.
- Primary positioning element 113 is shaped as a hollow cylindrical body with a first slit (not shown in the figures) oriented towards the inner part of primary main body 110 , and which runs along its entire length.
- first slit not shown in the figures
- first complement of positioning element 114 is also shaped as a hollow cylindrical body.
- secondary main body 120 has the shape of an 180° inverted letter “S” in a front view, and is formed by a secondary holding handle 121 of preferably circular transverse section, which forms the lower part of the main body in the shape of an inverted letter “S”, projecting form the base of its distal end to the intermediate section of said secondary main body 120 ; a secondary coupling element 122 , which constitutes the central section of main body 120 in the shape of an inverted letter “S”, and of flat shape, which joins the upper end of secondary holding handle 121 with the lower end of a secondary positioning element 124 , a receiving cavity 123 located on the front face of secondary positioning element 122 , of a shape which allows insertion and placement in its central part, of the projection of primary coupling element 112 , which in the embodiment being described has the shape of a semi circumference, a secondary positioning element 124 which projects from the end of secondary coupling element 122 to the proximal end of secondary main body 120 so as to form the upper part of the inverted
- Secondary positioning element 124 is shaped as a hollow cylindrical body which has a second slit (not shown in the figures), oriented towards the internal part of secondary main body 120 , which runs along its entire length.
- the second complement of positioning element 125 is shaped as a hollow cylinder as well.
- Primary main body 110 is joined to secondary main body 120 at their proximal and distal ends, as well as at its intermediate section, forming a single circuit body in the shape of a number eight, with a smaller diameter at its proximal end than at its distal end. Connection of both main bodies 110 and 120 at their distal end is achieved by using fastening element 130 , which has the same configuration and features of fastening element 30 described in the preferred embodiment of device 100 .
- the projection located in primary coupling element 122 is engaged with the receiving cavity 123 of secondary coupling element 122 , in such a way that said primary coupling element 112 is overlapped crosswise with secondary coupling element 122 .
- primary positioning element 113 is aligned with second complement of positioning element 125 and second positioning element 124 is aligned with first complement of positioning element 114 , thus forming an inside channel where the threading element (not shown in the figures) is placed.
- Multifunction element 140 is located inside the threading element, both elements performing the same functions and having the same features as the threading and multifunction 40 elements described in the preferred embodiment.
- spatial positioning element 60 described in the preferred embodiment of the present device 100 may be attached to one of its holding handles 111 or 121 .
- FIG. 18 shows a second additional embodiment of minimally invasive device for surgical procedures 200 subject of the present invention, which is formed by at least a pair of assembly elements formed by a primary main body 210 and a secondary main body 220 which cross each others at their intermediate section, and which are assembled at their proximal and distal ends, where primary main body 210 is formed by primary holding handle 211 and primary positioning element 212 , and secondary main body 220 is formed by secondary holding handle 221 and secondary positioning element 222 ; a fastening element 230 which is inserted in the distal end of both primary and secondary main bodies 210 and 220 respectively, a threading element (not shown in the figures) which is located on the inside of primary positioning element 212 and secondary positioning element 222 , and a multifunction element 240 which is located on the inside of the threading element.
- Secondary main body 220 is a mirror image of primary main body 210 , that is to say, said secondary main body 220 has the shape of a letter “S”, and is formed by a secondary holding handle 221 of preferably circular section, which forms the lower part of the main body in the shape of a letter “S”, projecting from the base of its distal end to approximately the intermediate section of said secondary main body 220 , and a secondary positioning element 222 which projects from where the secondary holding handle 221 ends to the proximal end of secondary main body 220 forming the central and upper parts of the primary main body in the shape of a letter “S”.
- the body of secondary positioning element 222 is of cylindrical shape, with a hollow interior and has a hollow secondary tangential appendix 223 located on its external face, at the starting point of the upper curvature of the “S”.
- Said secondary positioning element 222 has a second internal slit 224 which runs longitudinally along its internal face from its proximal end to approximately two third parts of the total length of said secondary positioning element 222 .
- said positioning element 222 has a second external slit 225 which runs longitudinally along its outer face from the second tangential appendix 223 to where said secondary positioning element 222 ends.
- Fastening element 230 is inserted in the distal end of primary main body 210 and secondary main body 220 and has the function of joining said bodies together and preventing their unintentional separation. Said fastening element 230 has the same features as fastening element 30 described in the preferred embodiment of the present invention.
- Device 200 includes a threading element (not shown in the figures), which is placed on the inside of primary positioning element 212 of primary main body 210 and of secondary positioning element 222 of secondary main body 220 once both main bodies 210 and 220 are joined together at their proximal and distal ends.
- the threading element houses multifunction element 240 , which has the same features and functions of multifunction element 40 described in the preferred embodiment.
- the threading element has two different trajectories, in a first trajectory, said element is placed following the online defined by primary positioning element 212 and secondary positioning element 222 , that is to say, the trajectory of said threading element is crossed in a loop, as observed in FIG. 19 .
- a second trajectory said threading element is inserted in the primary tangential appendix 213 or in the second tangential appendix 223 , continues to the proximal end of device 200 and exits through the opposite tangential appendix with respect to the one through which it entered, this second trajectory resembling the shape of a “U”, as shown in FIG. 20 .
- FIG. 21 shows a third embodiment of the minimally invasive device for surgical procedures 300 , which is formed by at least a couple of assembly elements formed by a primary main body 310 and a secondary main body 320 joined at their proximal end, a coupling element 330 which joins both primary and secondary main bodies 310 and 320 joined at their proximal end; a coupling element 330 which joins both primary and secondary main bodies 310 and 320 respectively at their intermediate section and at their distal end, a threading element (not shown in the figures) which is placed internally starting from the intermediate section of device 300 , continues to its proximal end and returns to said intermediate section, and a multifunction element 340 which is located inside the threading element.
- Primary main body 310 is formed by a primary holding handle 311 which projects upwards from its distal end to approximately two third parts of the total length of said main body 310 ; and a primary positioning body 312 , which projects from the end of primary holding handle 311 to the proximal end of said primary main body 310 .
- Primary holding handle 311 is a solid body with an ergonomic shape to provide a better grip to the user of the present device 100
- first positioning body 312 is a hollow body of preferably cylindrical shape, which has a curved trajectory which resembles a semi hook.
- Said primary positioning body 321 has a first slit 313 which runs from its proximal end to approximately two third parts of the total length of said positioning body 312 .
- first hooking element 314 Located at the lower end of primary holding handle 311 and particularly on its inner face is first hooking element 314 , while a second hooking element 315 is located on the intermediate section on its inner face, the function of which will be described below.
- Secondary main body 320 is a mirror image of primary main body 310 , that is to say, includes a secondary holding handle 321 and a secondary positioning body 322 .
- Said secondary positioning body 322 has a second slit 323 that runs from its proximal end to approximately two third parts of the total length of said secondary positioning body 322 .
- a third hooking element 324 is located, while a fourth hooking element 325 is located on the inner face of intermediate section, the function of which will be described later.
- Coupling element 330 has the shape of a 180° inverted letter “T” in a front view, and has primary and secondary hooking cavities 331 and 332 respectively on each end of its lower horizontal section, which engage with first hooking element 314 of primary holding handle 311 and with third hooking element 324 of secondary holding handle 321 respectively.
- said coupling element 330 has a third hooking cavity 333 on the upper end of its vertical section, which engages second hooking element 315 of primary holding handle 311 , and fourth hooking element 325 of secondary holding handle 321 , thus joining and keeping in position primary main body 310 and secondary main body 320 .
- device 300 is used for cutting bone structures, it is possible to attach a horizontal arm (not shown in the figures) to one of the holding handles 311 or 321 of the present device, at the ends of which external anchoring elements (not shown in the figures) are placed as described in the preferred embodiment of the present invention.
- a fourth additional embodiment of device for surgical procedures 400 it is formed by a single body 401 , which has a holding handle 410 which projects upward from its distal end to approximately two third parts of the total length of said body 400 , and a cutting body 420 , which projects from where holding handle 410 ends to the proximal end of said body 400 .
- Holding handle 410 has an ergonomic shape to provide a better grip to the user of the present device 100 .
- Cutting body 420 is a hollow body of preferably cylindrical shape, which has a curved trajectory which resembles a hook, with a proximal end with a blunt tip 421 in the shape of a decolator, as can be seen in FIG. 22 .
- Said cutting body 420 has an opening 422 along its entire length, which facilitates the cutting of a bone structure.
- the fourth additional embodiment of the present device 400 is very useful in surgical procedures which require a broad approach, as for instance osteotomies in the course of an amputation, in hip prosthesis because of arthrosis, in which, after dislocating the hip, it is required to carry out an osteotomy of the femoral neck. Since device 400 consists of a single body 401 , assembly delays are avoided, which results in a reduction of the time required for the surgical procedure, thus decreasing bleeding in the patient.
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Abstract
The present invention is related to a minimally invasive device for surgical procedures which generally comprises at least a pair of assembly elements formed by a primary main body and a secondary main body joined together at their proximal and distal ends; a fastening element which is inserted in the distal end of both primary and secondary main bodies respectively, which is employed to keep them joined together; a threading element which is inserted in its inner section from the intermediate section of said device, continues to its proximal end and returns to its intermediate section on the opposite end; and a multifunction element located on the inside of the threading element.
Description
- The present invention relates to the field of design and construction of devices used in surgical procedures, such as osteotomies, and specifically relates to a minimally invasive device for surgical procedures.
- Nowadays, when a person requires a surgical procedure in the course of which the cutting of a bone structure or removal of tissue adjacent to said bone structure is necessary, the surgeon usually carries out a broad approach both to provide a good view of the operating field as well as to protect the adjacent structures. To achieve this, he must carry out considerably large incisions in the skin, muscles, and other tissue of the patient, placing separators and protection material such as gauze and dressings, to protect noble structures such as nerves, which could otherwise be damaged in the course of the cutting procedures. In addition to the risk of damaging organs or surrounding tissue in the area where the incisions are carried out, there is also the risk of cutting a blood vessel which could render the surgical procedure more difficult and dangerous.
- In the prior art there are several devices to carry out cuts in bone structures and/or the removal of tissue, which use protecting elements to avoid damage to contiguous structures or organs. Such is the case of the device described in U.S. Pat. No. 8,062,300 B2, which is formed by an elongated main body which comprises a proximal handle, a distal handle, a guiding conduit and a guiding wire; these latter two elements connecting the proximal and distal handles. The proximal handle is connected to a guiding conduit, which is formed by a rigid proximal section and a flexible distal section, at the end of which a coupling element is located, which enables connection between said guiding conduit and a guiding wire. On one of the surfaces of the flexible distal section, tissue modifying elements are located, which carry out the material removal function of said device.
- To keep the tissue modifying elements from damaging structures or tissues before they have reached the working area, they are covered by a protective cover, made preferably from polymer material. The guiding wire is coupled on its other end to the distal handle, which includes a tensioning element which is used to modify the tension level of the guiding wire.
- However, the above device described above has a drawback in that its design is not ergonomic, which makes its use by the medical team more difficult. Another disadvantage is that the cut carried out by the device is performed by material removal instead of a clean cut, as well as the further drawback that being a very flexible device, only very small structures may be cut. In addition to the above, said device does not include a mechanism which enables regulation and measurement of the cut in the spatial planes.
- Another example of devices found in the prior art is the one described in U.S. Pat. No. 8,048,080B2, which comprises a main body formed by an elongated body, a handle, an actuator, tissue modifying elements and a protecting surface. The elongated body has a proximal and a distal section, which includes a window to enable the tissue modifying elements to make contact with the tissue to be modified. Before introducing the elongated body in the area with tissues to be modified, a guide piece must be inserted, which will act as guide and support element for said main body; as the elongated body is introduced in the body of the patient, the guide piece is inserted in the central part of said elongated body, once the elongated body is placed in its working position, the free end of the guide piece which projects outwards from the body of the patient is held firmly; the handle is held firmly as well, and by operating the actuator, the tissue modifying elements begin to carry out their abrasion or cutting function. Once the procedure is completed, the main body and the guide piece are removed from the body of the patient.
- The above described device, because of its configuration and design, requires at least two people to perform adequately, since it is required that the opposite end of the guide piece is firmly held, either by means of an anchoring device or by the hand of an operator. As in the case of the device of U.S. Pat. No. 8,062,300 B2, said device cuts by abrasion and not by means of a clean cut, and does not include a mechanism which allows regulation and measurement of the cut on any spatial plane.
- A further example of devices in the prior art can be found in U.S. Pat. No. 6,423,080 B1 which describes a device employed to hold or secure structures and/or organs, which comprises a pair of positioning pieces, which are formed by a handle, a guiding conduit, a bracket, a cutting element and an actuator. The handle has a hollow tubular body which has an actuator in its upper section and a bracket in its lower section which holds the guiding conduit in position. Said handle has an irregular outer surface to improve the grip.
- The guiding conduit has a straight proximal section, a curved intermediate section and a straight distal section. In an additional embodiment of said device, the straight distal section is oriented at a 90° angle with respect to the position of the straight proximal section. In addition, the guiding conduit is hollow to house the cutting element which in turn is hollow to allow passage of the guiding piece. The cutting element is employed to create a small aperture in the tissue and allow passage of the positioning element.
- One of the main disadvantages of said device is that it is conceived solely to locate a cord or sling on a tissue or structure that so requires, not for cutting bone structures. In addition to the above, to position the cord or sling requires removal of both positioning elements and of the guiding piece, which makes operating the device considerably difficult.
- In order to overcome the disadvantages of the prior art, a minimally invasive device for carrying out surgical procedures has been developed, which generally comprises at least a pair assembly elements formed by a primary main body and a secondary main body, joined at their proximal and distal ends; a fastening element which is inserted in the distal end of both primary and secondary main bodies respectively, whose function is to hold them together; a threading element which is inserted in its inner section from the intermediate section of said device, continues to its proximal end and returns to the intermediate section by the opposite end; and a multifunction element which is located inside the threading element.
- The primary main body is formed by a primary holding handle and a primary positioning element which connects with the primary holding handle. In the most distal part of the primary holding handle, an anchoring area is located, which includes a threaded hole where the fastening element is screwed. In addition, the primary positioning element has a first slit oriented towards the inner part of the primary main body, which, together with a second slit located in the secondary main body is used so that the multifunction element may protrude and carry out its work.
- The secondary main body is formed by a secondary holding handle and a secondary positioning element which connects with the primary holding handle. At the most distal section of the secondary holding handle, a coupling element is located, with a shape resembling a horizontal “U”. In addition, the secondary positioning element has a second slit oriented towards the inner part of the secondary main body, which enables that, together with the first slit of the primary positioning element, the multifunction element may protrude on the inside of the present device for surgical procedures. The fastening element is formed by a central handhold with an outside surface having a plurality of channels to increase the grip of said handhold. On its lower end, a boss is located, from which a threaded pin of smaller diameter projects, which is inserted in the threaded hole in the anchoring area of the primary main body.
- Once the primary positioning element is joined to the secondary positioning element at the proximal end, an internal channel is formed at the ends of which the threading element is placed. Said threading element houses the multifunction element in its interior. The internal channel has a window which is formed by joining the first slit to the second slit which enables the multifunction element to protrude from the inner part of the device.
- The multifunction element is employed to perform several tasks, among others: to modify tissues and/or structures, suturing, loops and cuts in bone structures.
- When this device is employed to cut bone structures, it includes a spatial positioning element which enables it to direct, measure and graduate the cut in said bone structure on three spatial planes, frontal sagittal and rotational. Said element is formed by a straight arm, where a first central longitudinal channel is located which runs along its entire length, a curved arm where a second longitudinal channel is located, and an anchoring mechanism employed to attach the spatial positioning element to the surgical procedures device.
- In an additional embodiment of the present device, it consists of a single body, which has a holding handle which projects from its distal end to approximately two third parts of the total length of said device, and a cutting body which projects from the end of the holding handle to the proximal end of said device.
- It is important to point out that the structure of the device for surgical procedures subject of the present invention allows its use in long bone osteotomies, mainly femur and shinbone, for procedures such as bone lengthening, axial corrections of members, as well as osteotomies of flat bones such as the illiacus, ischium and pubis.
- Bearing in mind the shortcomings of the prior art, one of the objects of the present invention is to provide a device for use in surgical procedures which requires minimal invasion, and which may be used in osteotomy and/or tissue removal procedures in a convenient and simple way
- An additional object of the present invention is to provide a device for use in surgical procedures which requires minimal invasion and which reduces to a minimum the time required to carry out the surgical procedure and the internal damage caused to the patient.
- An additional object of the present invention is to provide a minimally invasive device for use in surgical procedures which enables carrying out surgical procedures which are safer and less invasive for the patient.
- A further object of the present invention is to provide a minimally invasive device for surgical procedures with ergonomic design and construction, thereby facilitating its handling by the medical team.
- An additional object of the present invention is to provide a minimally invasive device for surgical procedures which includes a threading element which enables threading and placement of a multifunction element, such as for example a Gigli saw, to allow cutting of a bone structure.
- Another of the objects of the present invention is to provide a minimally invasive device for surgical procedures which functions as a protective element to avoid damage to adjacent structures and/or tissues during threading and use of the multifunction element.
- Another of the objects of the present invention is to provide a minimally invasive device for surgical procedures which includes means to attach it to a bone structure and a spatial positioning element which enables adjustment of the cut of said bone structure in the three planes, sagittal, frontal and rotational.
- The novelty aspects which are considered to characterize the present invention will be specifically established in the attached claims. However, the invention itself, as well as its structure and operation, along with other functions and advantages, will be better understood in the following detailed description of a preferred embodiment, when it is read in relation to the attached drawings, in which:
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FIG. 1 is a front perspective view of a preferred embodiment of the minimally invasive device for surgical procedures subject of the present invention. -
FIG. 2 is a lower perspective view of the primary main body which forms part of the device for surgical procedures shown inFIG. 1 . -
FIG. 3 is a lower perspective view of the secondary main body which forms part of the device for surgical procedures shown inFIG. 1 . -
FIG. 4 is a lower perspective view of the device for surgical procedures shown inFIG. 1 . -
FIG. 5 is a partial lower and front perspective view of the device for surgical procedures shown inFIG. 1 . -
FIG. 6 is a side perspective view of the device for surgical procedures shown inFIG. 1 when connected to a spatial positioning element. -
FIG. 7 is a partial side perspective view of the arrangement shown inFIG. 6 , which is attached to a bone structure. -
FIG. 8 is a front perspective view of a first embodiment of the spatial positioning element which forms part of the device for surgical procedures. -
FIG. 9 is a side perspective view of a ring located in the primary main body, which is part of the first embodiment of the spatial positioning element shown inFIG. 8 . -
FIG. 10 is a front perspective view of a second embodiment of the spatial positioning element which forms part of the device for surgical procedures. -
FIG. 11 is a side perspective view of a retaining system located in the primary main body, which forms part of the second embodiment of the spatial positioning element shown inFIG. 10 . -
FIG. 12 is a perspective view of the secondary main body being placed around a bone structure to carry out an osteotomy. -
FIG. 13 is a perspective view of the primary main body and the secondary main body being joined prior to an osteotomy. -
FIG. 14 is a perspective view of a bone structure which has been cut using the device for surgical procedures shown inFIG. 1 . -
FIG. 15 is a front view of a first additional embodiment of the minimally invasive device for surgical procedures subject of the present invention. -
FIG. 16 is a front view of the primary main body which forms part of the device for surgical procedures shown inFIG. 15 . -
FIG. 17 is a front view of the secondary main body which forms part of the device for surgical procedures shown inFIG. 15 . -
FIG. 18 is a front view of a second additional embodiment of the minimally invasive device for surgical procedures subject of the present invention. -
FIG. 19 is a schematic view that portrays a primary trajectory of the multifunction element around a bone structure, according to the configuration of the device for surgical procedures shown inFIG. 18 . -
FIG. 20 is a schematic view which portrays a secondary trajectory of the multifunction element around a bone structure, according to the configuration of the device for surgical procedures shown inFIG. 18 . -
FIG. 21 is a front view of a third additional embodiment of the minimally invasive device for surgical procedures subject of the present invention. -
FIG. 22 is a front view of a fourth additional embodiment of the minimally invasive device for surgical procedures subject of the present invention. - Referencing the attached drawings, and more specifically
FIGS. 1 to 5 of said drawings, they show a minimally invasive device forsurgical procedures 100 constructed according to a particularly preferred embodiment of the present invention, which should be considered as representative but not limitative of the same, where saiddevice 100 comprises in general terms at least a pair of assembly elements formed by a primary main body, 10 and a secondarymain body 20 joined at their proximal and distal ends; afastening element 30 which is inserted in the distal end of both the primary and secondarymain bodies device 100, continues to its proximal end and returns to the intermediate section by the opposite end, and amultifunction element 40 which is located inside the threading element - For better understanding of the structural configuration of the device for
surgical procedures 100, it is important to define that saiddevice 100 has a proximal end, which is the end located closest to the tissue or bone structure to be modified or cut, an intermediate section, which is located approximately in the central part ofdevice 100, and a distal end, which corresponds to the opposite end with respect to the proximal end, that is to say, corresponds to the end furthest from the tissue or structure to be modified. - The primary
main body 10 which corresponds to an assembly element of the above mentioneddevice 100, which inFIG. 1 is located on the left side of saiddevice 100, is formed by a primary holding handle 11 which projects from the base of the distal end ofdevice 100 to the intermediate section of said primarymain body 10; and aprimary positioning element 14 which connects to the primary holding handle 11, and projects from the intermediate section of the primarymain body 10 to its proximal end. - The primary main holding
handle 11 is a solid body that together with a secondary holding handle 21, form the shape of a fork, at whose distal section ananchoring area 12 is located, which has a homogeneous serrated surface on its outer face, whose function will be described below. In addition, said anchoringarea 12 of the primary holding handle 11 has a threaded orifice in whichfastening element 30 is threadingly inserted. - The
primary positioning element 14 is formed by a cylindrical hollow body which together with asecondary positioning element 23 resemble the shape of the upper part of a bowling pin, whosebottom end 15 projects laterally from the intermediate section of primarymain body 10 towards the outer part ofdevice 100 such as can be seen inFIG. 1 . At itsupper end 16,primary positioning element 14 has acoupling body 17, preferably of annular shape and with an inside diameter equal to the outside diameter of the body ofprimary positioning element 14. In addition, saidprimary positioning element 14 has afirst slit 18 oriented towards the inner part of primarymain body 10, which in a preferred embodiment, runs longitudinally from itsupper end 16 to approximately half of the total length of saidprimary positioning element 14. In another embodiment, slit 18 is complete since it runs longitudinally along the entire inner length ofprimary positioning element 14. First slit 18 together with asecond slit 26 located in secondarymain body 20, is used so thatmultifunction element 40 may protrude and carry out its work. The complete slit allowsmultifunction element 40 to act in its entire length, enabling suturing, cerclage, etc. without the need to removedevice 100. - The other assembly element of
device 100 corresponds to secondarymain body 20, which is located inFIG. 1 on the right hand side of saiddevice 100, being formed by a secondary holding handle 21 which projects from the base of the distal end of said secondarymain body 20 to the intermediate section of the secondarymain body 20; and asecondary positioning element 23 which projects from the end of the secondary holding handle 21, that is to say, from the intermediate section of said secondarymain body 20 to the base of its proximal end. - Secondary holding handle 21 is a solid body that together with primary holding handle 11, resemble the shape of a fork, at the most distal section of which a
coupling element 22 is located, which has the shape of a horizontal “U”, such as may be seen inFIG. 3 . On its inside face, saidcoupling element 22 has a homogeneous serrated surface (not shown in the figures) which corresponds in shape and size to the homogeneous serrated surface of anchoringarea 12 of primary holding handle 10. -
Secondary positioning element 23 is formed by a hollow cylindrical body, which together withprimary positioning element 14 resemble the shape of the upper part of a bowling pin, whoselower end 24 projects from the intermediate section of secondarymain body 20 to the outer part ofdevice 100. Theupper end 25 of saidsecondary positioning element 23 has a diameter which enables it to be inserted in thecoupling body 17 located inprimary positioning element 14. In addition, saidsecondary positioning element 23 has asecond slit 26 oriented towards the inner part of secondarymain body 20, which in a preferred embodiment runs longitudinally from itsupper end 25 to approximately half of the total length of saidsecondary positioning element 23. In an additional embodiment, slit 26 is complete since it runs longitudinally along the entire inner section ofsecondary positioning element 23. Second slit 26 is used so that, together withfirst slit 18 ofprimary positioning element 14, they allowmultifunction element 40 to protrude on the inside ofdevice 100. - Primary
main body 10 is joined to secondarymain body 20 at their proximal and distal ends, forming a single circuit body, with a shape which resembles an inverted fork in its distal part and the outline of a bowling pin in its proximal part. It is worth mentioning that at the proximal end of the device forsurgical procedures 100,primary positioning element 14 is joined tosecondary positioning element 23 by means ofcoupling body 17 ofprimary positioning element 14. The function of holding together primarymain body 10 and secondarymain body 20 at their distal end is carried out by fasteningelement 30. - Fastening
element 30 is formed by acentral handle 31 of preferably cylindrical shape, with an outside surface having a plurality ofchannels 32 which cross each other to form a rough surface which increases grip of saidcentral handle 31. At the lower end ofcentral handle 31 is located aboss 33 positioned perpendicularly to saidcentral handle 31, with a preferably cylindrical outline, from the inside of which a threadedcylinder 34 of smaller diameter than saidboss 31 projects, which is placed in threadedorifice 13 of anchoringarea 12 of primarymain body 10. Threadedcylinder 34 has a diameter which enables it to be firmly held by couplingelement 22. In addition, at the opposite end of whereboss 33 is located, threadedcylinder 34 has aprotrusion 35, which is an integral part of threadedcylinder 34 and of larger diameter than threadedhole 13 of anchoringarea 12, which oncefastening element 30 is placed in primarymain body 10 ensures that it cannot be separated from saidbody 10 but may rotate freely to fasten secondarymain body 20. - Once
primary positioning element 14 is joined tosecondary positioning element 23 at its proximal end, and because both elements are formed by hollow cylindrical bodies, an internal channel is formed at the ends of which a threading element is placed (not shown in the figures), which is inserted from the intermediate section ofdevice 100, continues to its proximal end, and returns to the intermediate section on the opposite side. The internal channel has an aperture (window) which is formed by joining first slit 18 ofprimary positioning element 14 tosecond slit 26 ofsecondary positioning element 23 and from wheremultifunction element 40 may protrude on the inner part ofdevice 100 as will be explained below. -
Multifunction element 40 is employed to perform several functions, including but not limited to: modifications in tissues and/or structures, sutures, cerclages, loops and cuts in bone structures. Depending on the function to be carried out,multifunction element 40 may be selected from wires, cables, suturing threads and cutting saws, such as for example Gigli's saw, etc. - Over multifunction element 40 a threading element is placed (not shown in the figures) which in a preferred embodiment of the present invention is a siliconed tube, which facilitates threading of the multifunction element through the internal channel, preventing said
element 40 from protruding from the aperture (window) formed byfirst slit 18 andsecond slit 26. In addition, ifmultifunction element 40 has sharp edges as in the case of cutting saws, the threading element protects the person manipulatingmultifunction element 40 from suffering lesions when placing it in position. - As is shown in
FIGS. 6 and 7 ,device 100 may be used for cutting bone structures, and for this purpose saiddevice 100 includes an element forspatial positioning 60 which enables it to direct, measure and graduate the cut of said bone structure on three spatial planes: frontal sagittal and rotational. To usespatial positioning element 60 it is firmly attached to the bone structure to be cut by at least twoexternal anchoring elements 70 and to the device forsurgical procedures 100 by means of ananchoring mechanism 80. This positioning and graduation device allows us to maintain the bone structure in position after the cut even after removingdevice 100. -
Spatial positioning 60 is formed by astraight arm 61, which has a flat elongated body of rectangular shape, where a first central longitudinal channel 62 is located, which traverses the whole thickness of the body and runs along its entire length and over whichanchoring mechanism 80, which is described below, slides and to which it is secured. Saidstraight arm 61 has a first indicating scale 63 on its upper surface, which allows the user of this device to read the displacement ofdevice 100 on the frontal plane (varus-valgus). -
Straight arm 61 has aprimary anchoring point 64 on one of its ends, preferably of quadrangular shape, which is provided with a central orifice (not shown in the figures) where anexternal fastening element 70 is inserted. At the opposite end with respect to the location ofprimary anchoring point 64, a slidinganchoring point 65 is located, which in a preferred embodiment is in the shape of a “C” over which acurved arm 66 slides and to which it is secured. -
Curved arm 66 is formed by a thin curved body with a curvature having a radius equal to the distance to the center of the bone structure to be cut and where a second centrallongitudinal channel 67 which traverses the whole thickness of the body is located, which is used to fasten saidcurved arm 66 to the slidinganchoring point 65 by means of ascrew 68 which is threadingly inserted in an orifice (not shown in the figures) located in slidinganchoring point 65.Curved arm 66 includes an indicatingscale 69 on its front surface, which enables measurement of the rotation angle ofdevice 100 with respect to the bone structure. This feature is particularly useful in derotational osteotomies. - The pair of
external fastening elements 70 is used to attachdevice 100 to a bone structure. Said pair ofexternal fastening elements 70 is selected from a group including Kirschner and/or Steinmann pins, the preferred element being Kirschner pins. - Anchoring
mechanism 80 is employed to securespatial positioning element 60 to device forsurgical procedures 100. To achieve this, primarymain body 10 or secondarymain body 20 ofdevice 100, and particularly primary holding handle 11 or secondary holding handle 21 include anappendix 90 preferably of cylindrical shape which protrudes longitudinally and upwards following a straight trajectory, from approximately the middle of holdinghandle handle 21. - In this preferred embodiment, anchoring
mechanism 80 is formed by amain body 81, preferably of cylindrical shape, the front face of which includes an orifice (not shown in the figures) in which appendix 90 of primary holding handle 11 or secondary holding handle 21 is inserted and secured. The depth at whichdevice 100 is located with respect to the bone structure to be cut is graduated depending on the position in whichanchoring mechanism 80 is secured to appendix 90 with respect to its longitudinal axis. In addition, on the upper face of saidmain body 81, a rotation element 82 is located, which can rotate with respect tomain body 81 and which includes a preferablyrectangular indentation 83. Saidindentation 83, has a threaded orifice in its center (not shown in the figures), over whichstraight arm 61 is positioned and secured by abolt 84 which is inserted in first central channel 62 and in said threaded orifice. The configuration ofmain body 81 with respect to rotation element 82 allows rotation ofdevice 100 with respect to thespatial positioning element 60, which enables control of the bone structure cut on the sagittal and frontal planes. Said feature is very useful in varus-valgus osteotomies or when it is necessary to create a fore wedge in a hip or knee extension osteotomy. - In a first additional embodiment of the
spatial positioning element 60 shown inFIGS. 8 and 9 , saidelement 60 includes, in addition tostraight arm 61 andcurved arm 66, anintermediate arm 610 arranged belowstraight arm 61, which has a flat elongated body of rectangular shape, where a thirdcentral channel 611 is located, which traverses the entire thickness of the body and runs along its entire length. It is important to mention thatintermediate arm 610 performs the same function asappendix 90, that is, it allows to graduate the depth at whichdevice 100 is located with respect to the bone structure to be cut, and for that purpose, saidintermediate arm 610 has a third indicatingscale 612 on its outer upper face. - In addition, over left primary
main body 10 or over rightmain body 20 ofdevice 100, more specifically over primary holding handle 11 or over secondary holdinghandle 21, aring 91 is located, which is part of a first additional embodiment of anchoringmechanism 80, which includes a fixed coupling element 92 located centrally on its upper outer face, which is employed to connect tospatial positioning element 60 by coupling tointermediate arm 610; a quick locking mechanism (not shown in the figures) to allow fast coupling of saidring 91 todevice 100, and anintermediate indentation 93 located on its lower outer surface, which allows movement ofdevice 100 to graduate and control the cut of the bone structure on the sagittal plane. - Regarding
FIGS. 10 and 11 , they show a second additional embodiment ofspatial positioning element 60, where saidelement 60, in addition to including astraight arm 61, acurved arm 66 and anintermediate arm 610 as described in the first embodiment of saidelement 60, includes a vertical stem 85, the lower end of which includes asphere 86, which, as will be described below, is inserted in aspherical cavity 94 located indevice 100, allowing rotational movement ofspatial positioning element 60 with respect to saiddevice 100; while the upper end of said vertical stem 85 is inserted in the firstcentral channel 611 ofintermediate arm 610, in such a way that bothstraight arm 61 andintermediate arm 610 are connected by said vertical stem 85. - In order that this second additional embodiment of
spatial positioning device 60 may be connected todevice 100, primarymain body 10 or secondarymain body 20, and particularly primary holding handle 11 or secondary holding handle 21 include a second embodiment of anchoringmechanism 80, which includes a retainingindentation 93 in the shape of a wine glass, which has aspherical cavity 94 on its upper end to retainsphere 86 of vertical stem 85 in such a way as to form a ball joint, and on its lower end, which has a tubular shape and is threaded, said retainingindentation 93 includes a threaded holdingkey 95 in the shape of a “Y”, the vertical end of said “Y” being inserted in the lower end of retainingindentation 93. Threaded key 93, when rotated in one direction, firmly graspssphere 86, when turned in the opposite direction the force with whichsphere 86 is held is diminished, thus allowing angular movement ofdevice 100 overspatial positioning element 60 on the sagittal plane. - It is important to mention that the structure of the device for
surgical procedures 100 subject of the present invention allows its use in long bone osteotomies, particularly in the case of femur and shinbone, for procedures such as bone lengthening, axial corrections of members, as well as flat bone osteotomies, as in the case of the illiac, ischion and pubic bones. - Regarding
FIGS. 12 to 14 , they show the preferred embodiment of thisdevice 100 being used in a minimally invasive surgical procedure, and specifically being used to perform an osteotomy. Once the surgeon has separated the periosteoum uncovering a bone structure to be cut, the surgeon places the secondarymain body 20 ofdevice 100 around said bone structure, in such a way that it is surrounded bysecondary positioning element 23, as can be seen inFIG. 12 . Oncesecondary positioning element 23 is located in its working position, it is connected at its proximal end withprimary positioning element 14 by means ofcoupling body 17, as shown inFIG. 13 . - In addition, at the distal end of the
present device 100, both holdinghandles FIGS. 1 to 3 ). First the serrated internal surface ofcoupling element 22 of secondary holding handle 21 is placed on the outer surface of anchoringarea 12, in such a way that both serrated surfaces mate. Then, threadedprojection 34 offastening element 30 is threaded inorifice 13 of primary holding handle 11 untilboss 33 firmlycontacts coupling element 22. This allows coupling of both primary and secondarymain bodies - Once the
present device 100 has been placed in its working position and its proximal and distal ends have been fastened,spatial positioning element 60 is placed ondevice 100 and attached to the bone structure by a pair of Kirschner mails which constitutefastening elements 70. Once the position and direction ofdevice 100 have been graduated according to the cut to be carried out, the threading element which housesmultifunction element 40, which in this case is a Gigli saw, is inserted throughlower end 15 of theprimary positioning element 14 or throughlower end 24 ofsecondary positioning element 23. Said threading element is inserted in one of the lower ends 15 or 24 and exits on the lower end of the opposite side. When the threading element, together withmultifunction element 40 are located in their working position, the surgeon removes the threading element uncovering the cutting elements of the Gigli saw. The surgeon grasps both elements ofmultifunction element 40 protruding fromdevice 100, and by means of a back and forth movement, saidelement 40 cuts the bone structure through the opening located on the internal channel of the proximal end ofdevice 100. - Regarding
FIGS. 15 to 17 , they show a first additional embodiment of the minimally invasive device forsurgical procedures 101 which is formed by at least a pair of assembly elements formed by a primarymain body 110 and a secondarymain body 120 joined together crosswise at their proximal and distal ends and at their intermediate section, afastening element 130 which is inserted in the distal end of both primary and secondarymain bodies device 101 from its intermediate section, continues to its proximal end and returns to said intermediate section, and amultifunction element 140 which is placed inside the threading element. - As is shown in
FIG. 16 , the primarymain body 110 has the shape of a letter “S” in a front view, and is formed by a primary holding handle 111 of preferably circular transverse section, which forms the lower part of the main body in the shape of a letter “S”, projecting from the base of its distal end to approximately the middle section of said primarymain body 110, aprimary coupling element 112, which constitutes the central part of themain body 110 in the shape of a letter “S”, of flat shape, which joins the upper end of primary holding handle 111 to the lower end of aprimary positioning element 113, a projection (not shown in the figures) located on the rear face ofprimary coupling element 112, of preferably cylindrical shape, aprimary positioning element 113 which projects from the end ofprimary coupling element 112 to the proximal end of primarymain body 110 thus forming the upper part of the letter “S”, and a first complement ofpositioning element 114 located over the upper end of primary holding handle 111 at the intermediate section ofdevice 101, with a trajectory in the shape of a letter “C” following approximately the outline ofprimary holding handle 111. - At the most distal part of primary holding handle 111 an anchoring area is located (not shown in the figures) which has a homogeneous serrated surface on its outer face. In addition, on said anchoring area, primary holding handle 111 has a threaded orifice, into which
fastening element 130 is threadingly inserted. -
Primary positioning element 113 is shaped as a hollow cylindrical body with a first slit (not shown in the figures) oriented towards the inner part of primarymain body 110, and which runs along its entire length. In addition, the first complement ofpositioning element 114 is also shaped as a hollow cylindrical body. - On the other hand, secondary main body 120 has the shape of an 180° inverted letter “S” in a front view, and is formed by a secondary holding handle 121 of preferably circular transverse section, which forms the lower part of the main body in the shape of an inverted letter “S”, projecting form the base of its distal end to the intermediate section of said secondary main body 120; a secondary coupling element 122, which constitutes the central section of main body 120 in the shape of an inverted letter “S”, and of flat shape, which joins the upper end of secondary holding handle 121 with the lower end of a secondary positioning element 124, a receiving cavity 123 located on the front face of secondary positioning element 122, of a shape which allows insertion and placement in its central part, of the projection of primary coupling element 112, which in the embodiment being described has the shape of a semi circumference, a secondary positioning element 124 which projects from the end of secondary coupling element 122 to the proximal end of secondary main body 120 so as to form the upper part of the inverted letter “S”, and a second complement of positioning element 125 located over the upper end of secondary holding handle 121 at a height corresponding to the intermediate section of device 101, which has a trajectory in the shape of a 180° inverted letter “C”, approximately following the outline of secondary holding handle 121.
- A
coupling element 126 shaped as a 180° inverted letter “C” is located at the most distal section ofsecondary holding handle 121. On its inner face, said element has a homogeneous serrated surface (not shown in the figures) which corresponds in shape and size with the homogeneous serrated surface of the anchoring area ofprimary holding handle 111. -
Secondary positioning element 124 is shaped as a hollow cylindrical body which has a second slit (not shown in the figures), oriented towards the internal part of secondarymain body 120, which runs along its entire length. In addition, the second complement ofpositioning element 125 is shaped as a hollow cylinder as well. - Primary
main body 110 is joined to secondarymain body 120 at their proximal and distal ends, as well as at its intermediate section, forming a single circuit body in the shape of a number eight, with a smaller diameter at its proximal end than at its distal end. Connection of bothmain bodies fastening element 130, which has the same configuration and features offastening element 30 described in the preferred embodiment ofdevice 100. - To join primary
main body 110 to secondarymain body 120 at their intermediate section, the projection located inprimary coupling element 122 is engaged with the receivingcavity 123 ofsecondary coupling element 122, in such a way that saidprimary coupling element 112 is overlapped crosswise withsecondary coupling element 122. - When joining primary
main body 110 to secondarymain body 120,primary positioning element 113 is aligned with second complement ofpositioning element 125 andsecond positioning element 124 is aligned with first complement ofpositioning element 114, thus forming an inside channel where the threading element (not shown in the figures) is placed.Multifunction element 140 is located inside the threading element, both elements performing the same functions and having the same features as the threading and multifunction 40 elements described in the preferred embodiment. - It is worth mentioning that when device for
surgical procedures 101 is used to cut bone structures,spatial positioning element 60 described in the preferred embodiment of thepresent device 100 may be attached to one of its holding handles 111 or 121. - With reference to
FIG. 18 , it shows a second additional embodiment of minimally invasive device forsurgical procedures 200 subject of the present invention, which is formed by at least a pair of assembly elements formed by a primarymain body 210 and a secondarymain body 220 which cross each others at their intermediate section, and which are assembled at their proximal and distal ends, where primarymain body 210 is formed by primary holding handle 211 andprimary positioning element 212, and secondarymain body 220 is formed by secondary holdinghandle 221 andsecondary positioning element 222; afastening element 230 which is inserted in the distal end of both primary and secondarymain bodies primary positioning element 212 andsecondary positioning element 222, and amultifunction element 240 which is located on the inside of the threading element. - In a front view, primary
main body 210 is shaped as a 180° inverted letter “S”, being formed by primary holding handle 211 of preferably circular section, which forms the lower part of the primary main body in the shape of an inverted letter “S”, projecting from the base of its distal end to approximately the middle section of said primarymain body 210, and aprimary positioning element 212 which projects from the end of primary holding handle 211 to the proximal end of primarymain body 210, forming the central and upper parts of the primary main body in the shape of an inverted letter “S”. - The body of
primary positioning element 212 is of cylindrical shape, with a hollow interior and a hollow primarytangential appendix 213 located on its outer face, at the starting point of the upper curvature of the “S”. Saidprimary positioning element 212 has a firstinternal slit 214 which runs longitudinally along its inner face from the proximal end to approximately two third parts of the total length of saidprimary positioning element 212. In addition, said primary positioning element has a firstexternal slit 215 which runs longitudinally along its outer face from where primarytangential appendix 213 is located to where saidprimary positioning element 212 ends. - Secondary
main body 220 is a mirror image of primarymain body 210, that is to say, said secondarymain body 220 has the shape of a letter “S”, and is formed by a secondary holding handle 221 of preferably circular section, which forms the lower part of the main body in the shape of a letter “S”, projecting from the base of its distal end to approximately the intermediate section of said secondarymain body 220, and asecondary positioning element 222 which projects from where the secondary holding handle 221 ends to the proximal end of secondarymain body 220 forming the central and upper parts of the primary main body in the shape of a letter “S”. - The body of
secondary positioning element 222 is of cylindrical shape, with a hollow interior and has a hollow secondarytangential appendix 223 located on its external face, at the starting point of the upper curvature of the “S”. Saidsecondary positioning element 222 has a secondinternal slit 224 which runs longitudinally along its internal face from its proximal end to approximately two third parts of the total length of saidsecondary positioning element 222. In addition, saidpositioning element 222 has a secondexternal slit 225 which runs longitudinally along its outer face from the secondtangential appendix 223 to where saidsecondary positioning element 222 ends. -
Fastening element 230 is inserted in the distal end of primarymain body 210 and secondarymain body 220 and has the function of joining said bodies together and preventing their unintentional separation. Saidfastening element 230 has the same features as fasteningelement 30 described in the preferred embodiment of the present invention. -
Device 200 includes a threading element (not shown in the figures), which is placed on the inside ofprimary positioning element 212 of primarymain body 210 and ofsecondary positioning element 222 of secondarymain body 220 once bothmain bodies multifunction element 240, which has the same features and functions ofmultifunction element 40 described in the preferred embodiment. - The threading element has two different trajectories, in a first trajectory, said element is placed following the online defined by
primary positioning element 212 andsecondary positioning element 222, that is to say, the trajectory of said threading element is crossed in a loop, as observed inFIG. 19 . In a second trajectory, said threading element is inserted in the primarytangential appendix 213 or in the secondtangential appendix 223, continues to the proximal end ofdevice 200 and exits through the opposite tangential appendix with respect to the one through which it entered, this second trajectory resembling the shape of a “U”, as shown inFIG. 20 . Having two trajectory options in the same device, has the advantage of initiating with a primary trajectory for the threading operation, and later changing the trajectory ofmultifunction element 240, for example, cross threading of the Gigli saw and subsequently uncrossing it to carry out a “U” cut without the need to removedevice 200. This is made possible by slits both in its inner and outer faces. - Now, referencing
FIG. 21 , it shows a third embodiment of the minimally invasive device forsurgical procedures 300, which is formed by at least a couple of assembly elements formed by a primarymain body 310 and a secondarymain body 320 joined at their proximal end, acoupling element 330 which joins both primary and secondarymain bodies coupling element 330 which joins both primary and secondarymain bodies device 300, continues to its proximal end and returns to said intermediate section, and amultifunction element 340 which is located inside the threading element. - Primary
main body 310 is formed by a primary holding handle 311 which projects upwards from its distal end to approximately two third parts of the total length of saidmain body 310; and aprimary positioning body 312, which projects from the end of primary holding handle 311 to the proximal end of said primarymain body 310. Primary holding handle 311 is a solid body with an ergonomic shape to provide a better grip to the user of thepresent device 100, whilefirst positioning body 312 is a hollow body of preferably cylindrical shape, which has a curved trajectory which resembles a semi hook. Saidprimary positioning body 321 has afirst slit 313 which runs from its proximal end to approximately two third parts of the total length of saidpositioning body 312. - Located at the lower end of primary holding handle 311 and particularly on its inner face is first hooking
element 314, while a second hookingelement 315 is located on the intermediate section on its inner face, the function of which will be described below. - Secondary
main body 320 is a mirror image of primarymain body 310, that is to say, includes asecondary holding handle 321 and asecondary positioning body 322. Saidsecondary positioning body 322 has asecond slit 323 that runs from its proximal end to approximately two third parts of the total length of saidsecondary positioning body 322. In addition, at the lower end ofsecondary holding handle 321, and particularly on its inner face, a third hookingelement 324 is located, while a fourth hookingelement 325 is located on the inner face of intermediate section, the function of which will be described later. - Coupling
element 330 has the shape of a 180° inverted letter “T” in a front view, and has primary and secondary hookingcavities element 314 of primary holding handle 311 and with third hookingelement 324 of secondary holding handle 321 respectively. In addition, saidcoupling element 330 has a third hookingcavity 333 on the upper end of its vertical section, which engages second hookingelement 315 ofprimary holding handle 311, and fourth hookingelement 325 ofsecondary holding handle 321, thus joining and keeping in position primarymain body 310 and secondarymain body 320. - Once both
main bodies multifunction element 340 inside it is inserted, said elements having the same features as threading element and multifunction 40 elements described in the preferred embodiment of the present invention. - If
device 300 is used for cutting bone structures, it is possible to attach a horizontal arm (not shown in the figures) to one of the holding handles 311 or 321 of the present device, at the ends of which external anchoring elements (not shown in the figures) are placed as described in the preferred embodiment of the present invention. - In a fourth additional embodiment of device for
surgical procedures 400, it is formed by asingle body 401, which has a holdinghandle 410 which projects upward from its distal end to approximately two third parts of the total length of saidbody 400, and a cuttingbody 420, which projects from where holdinghandle 410 ends to the proximal end of saidbody 400. - Holding
handle 410 has an ergonomic shape to provide a better grip to the user of thepresent device 100. Cuttingbody 420 is a hollow body of preferably cylindrical shape, which has a curved trajectory which resembles a hook, with a proximal end with ablunt tip 421 in the shape of a decolator, as can be seen inFIG. 22 . Said cuttingbody 420 has anopening 422 along its entire length, which facilitates the cutting of a bone structure. - The fourth additional embodiment of the
present device 400 is very useful in surgical procedures which require a broad approach, as for instance osteotomies in the course of an amputation, in hip prosthesis because of arthrosis, in which, after dislocating the hip, it is required to carry out an osteotomy of the femoral neck. Sincedevice 400 consists of asingle body 401, assembly delays are avoided, which results in a reduction of the time required for the surgical procedure, thus decreasing bleeding in the patient. - Even though in the above description, preferred embodiments of the present invention have been described and shown, it must be stressed that numerous modifications to the same are possible without deviating from the true scope of the invention, such as modifications to the configuration of holding handles and coupling elements, modifications to the section of the different elements which form part of the present device, modifying the fastening element, etc.
- Therefore, the present invention must not be restricted except by what may be required because of the prior art and the attached claims.
Claims (21)
1-49. (canceled)
50. A minimally invasive device for surgical procedures, the device comprising:
at least one pair of assembly elements formed by a primary main body and a secondary main body each having a proximal end, a distal end, and an intermediate section, wherein the primary main body and the secondary main body are joined together at their proximal ends and at their distal ends;
a fastening element which is inserted in the distal ends of both the primary and secondary main bodies, and which is employed to keep the distal ends of both the primary and secondary main bodies joined together;
a threading element comprising an inner section inserted in the intermediate section of one of the primary main body and the secondary main body, continues to the proximal end of at least one of the primary main body and the secondary main body, and returns to the intermediate section of the other one of the primary main body and the secondary main body; and
a multifunction element located inside the threading element;
wherein the fastening element comprises a central handle with an outer surface having a plurality of channels which cross each other to form a rough surface which increases friction of said central handle for gripping thereof, and comprises a boss located on a lower end of the central handle and positioned perpendicularly to the central handle, with a threaded cylinder having a smaller diameter than said boss projecting from an inner face of the boss and inserted in an orifice of an anchoring area of the primary main body; where the threaded cylinder is arranged to be securely held by the fastening element.
51. A minimally invasive device for surgical procedures according to claim 50 , wherein the central handle has a substantially cylindrical shape, and the boss has a substantially cylindrical outline.
52. A minimally invasive device for surgical procedures according to claim 50 , wherein on a side opposite to where the boss is located, the threaded cylinder has a projection of larger diameter than the orifice in the anchoring area; and wherein said projection is an integral part of the threaded cylinder.
53. A minimally invasive device for surgical procedures, the device comprising:
at least one pair of assembly elements formed by a primary main body and a secondary main body each having a proximal end, a distal end, and an intermediate section, wherein the primary main body and the secondary main body are joined together at their proximal ends and at their distal ends;
a fastening element which is inserted in the distal ends of both the primary and secondary main bodies, and which is employed to keep the distal ends of both the primary and secondary main bodies joined together;
a threading element comprising an inner section inserted in the intermediate section of one of the primary main body and the secondary main body, continues to the proximal end of at least one of the primary main body and the secondary main body, and returns to the intermediate section of the other one of the primary main body and the secondary main body; and
a multifunction element located inside the threading element;
wherein the device further includes a spatial positioning element which allows the device to direct, measure, and graduate the cut of a bone structure on frontal, sagittal, and rotational spatial planes, wherein the spatial positioning element is firmly attached to the bone structure to be cut, by at least a pair of bone structure fastening elements external to the minimally invasive device for surgical procedures, employing an anchoring mechanism.
54. A minimally invasive device for surgical procedures according to claim 53 , wherein the spatial positioning element comprises a straight arm and a curved arm, the straight arm having a flat rectangular elongated body including a first central longitudinal channel which traverses the entire thickness of the body and runs along the entire length of the body, and over which the anchoring mechanism slides and locks, wherein said straight arm has a first indicating scale positioned on an upper face of the straight arm, which indicates displacement of the device on a front plane (varus-valgus) to a user of the device.
55. A minimally invasive device for surgical procedures according to claim 54 , wherein the straight arm has two terminal ends and a primary anchoring point located at one of the terminal ends, wherein the primary anchoring point has a central orifice where an external anchoring element is inserted, and wherein at the other one of the terminal ends a sliding point is located, and over which the curved arm slides and locks.
56. A minimally invasive device for surgical procedures according to claim 55 , wherein the primary anchoring point comprises a substantially quadrangular shape, and the sliding point is substantially C-shaped.
57. A minimally invasive device for surgical procedures according to claim 55 , wherein the curved arm comprises a curved body having a curvature with a radius having the same center as a center of the bone structure to be cut and having a second central longitudinal channel traversing an entire thickness of the curved body and being employed to lock said curved am to the sliding point with a screw which is threadingly inserted in an orifice located in the sliding point, and wherein said curved arm has a second indicating scale positioned on a front face of the curved arm to allow measurement of an angle of rotation of the device with respect to the bone structure.
58. A minimally invasive device for surgical procedures according to claim 53 , wherein the external anchoring elements are selected from a group consisting of Kirschner pins and Steinmann pins.
59. A minimally invasive device for surgical procedures according to claim 53 , wherein the external anchoring elements comprise Kirschner pins.
60. A minimally invasive device for surgical procedures according to claim 54 , wherein the primary main body comprises a primary holding handle, the secondary main body comprises a secondary holding handle, and one of the primary holding handle or the secondary holding handle includes a projection which projects longitudinally and in an ascending direction following a straight trajectory, from approximately half of the primary holding handle or secondary holding handle to a distance coinciding with an end of the primary holding handle or the secondary holding handle.
61. A minimally invasive device for surgical procedures according to claim 60 , wherein the projection comprises a substantially cylindrical shape.
62. A minimally invasive device for surgical procedures according to claim 54 , wherein the anchoring mechanism comprises a central body including a front face having an orifice in which an appendix of the primary holding handle or an appendix of the secondary holding handle is inserted and secured; and the device includes a rotation element located on an upper face of said central body and that can rotate with respect to the central body, wherein the rotation element has an indentation including a central part having a threaded orifice over which the straight arm is positioned and secured by a bolt inserted in the first central longitudinal channel and in said threaded orifice.
63. A minimally invasive device for surgical procedures according to claim 62 , wherein the central body comprises a substantially cylindrical shape.
64. A minimally invasive device for surgical procedures according to claim 54 , wherein the spatial positioning element further includes an intermediate arm placed under the straight arm and having a flat elongated body of substantially rectangular shape and including a third central channel which traverses the entire flat elongated body and runs along an entire length of the flat elongated body.
65. A minimally invasive device for surgical procedures, the device comprising:
at least one pair of assembly elements formed by a primary main body and a secondary main body each having a proximal end, a distal end, and an intermediate section, wherein the primary main body and the secondary main body are joined at their proximal ends;
a coupling element which joins both primary and secondary main bodies at their intermediate sections and at their distal ends;
a threading element which is placed internally from the intermediate section of at least one of the primary main body and the second main body, continues to the proximal end of at least one of the primary main body and the second main body, and returns to the intermediate section of the at least one of the primary main body and the second main body; and
a multifunction element located on the inside of the threading element
66. A minimally invasive device for surgical procedures according to claim 65 , wherein the primary main body includes of a primary holding handle which projects upwards from the distal end of the main body to approximately two-thirds a total length of said primary main body, and includes a primary positioning body projecting from an end of the primary holding handle to the proximal end of said primary, main body, wherein said primary holding handle is of ergonomic shape to facilitate gripping by a user of the device, wherein the primary positioning body has a curved trajectory which resembles a semi hook; and has a first slit running from a proximal end of the primary positioning body to approximately two-thirds of a total length of said primary positioning body.
67. A minimally invasive device for surgical procedures according to claim 66 , wherein a first hooking element is located at the lower end of the primary holding handle on an inner face of the primary holding handle, and a second hooking element is located at a height of an intermediate section of the primary holding handle.
68. A minimally invasive device for surgical procedures according to claim 65 , wherein the secondary main body has a secondary holding handle and a secondary positioning body; wherein said secondary positioning body has a second slit which runs from a proximal end of the secondary positioning body to approximately two-thirds of a total length of said secondary positioning body, wherein a third hooking element is located at a lower end of the secondary holding handle on an inner face of the secondary holding handle, and wherein a fourth coupling element is located at the height of the intermediate section on its inner face a fourth coupling element is located.
69. A minimally invasive device for surgical procedures according to claim 65 , wherein once the primary and secondary main bodies are joined at their proximal end, an internal channel is formed in which is inserted the threading element with the multifunction element inside the threading element.
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UY0001033839A UY33839A (en) | 2011-12-22 | 2011-12-22 | MINIMALLY INVASIVE OSTEOTOMY DEVICE |
PCT/IB2012/057579 WO2013093865A2 (en) | 2011-12-22 | 2012-12-21 | Minimally invasive device for surgical operations |
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CN106923887A (en) * | 2017-03-31 | 2017-07-07 | 中国人民解放军第二军医大学第二附属医院 | Pedicle of vertebral arch cropper |
KR101825991B1 (en) * | 2016-08-10 | 2018-02-06 | 인제대학교 산학협력단 | Device for barrel vault osteotomy |
RU207099U1 (en) * | 2021-06-03 | 2021-10-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Казанский государственный медицинский университет» Министерства здравоохранения Российской Федерации | Wire cerclage device |
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US10485599B2 (en) * | 2016-12-06 | 2019-11-26 | Matthew Songer | Surgical cable passer instrument and methods |
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RU207099U1 (en) * | 2021-06-03 | 2021-10-12 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Казанский государственный медицинский университет» Министерства здравоохранения Российской Федерации | Wire cerclage device |
Also Published As
Publication number | Publication date |
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WO2013093865A2 (en) | 2013-06-27 |
UY33839A (en) | 2013-07-31 |
US9545260B2 (en) | 2017-01-17 |
WO2013093865A3 (en) | 2013-08-15 |
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